Switching environments (to a machine with Cygwin), I got errors like this from pdflatex:
kpathsea: Running mktextfm ptmr8t
/usr/share/texmf-dist/web2c/mktexnam: Could not map source abbreviation for ptmr8t.
/usr/share/texmf-dist/web2c/mktexnam: Need to update ?
mktextfm: Running mf-nowin -progname=mf \mode:=ljfour; mag:=1; nonstopmode; input ptmr8t
This is METAFONT, Version 2.718281 (TeX Live 2013/Cygwin)
kpathsea: Running mktexmf ptmr8t
! I can't find file `ptmr8t'.
<*> ...:=ljfour; mag:=1; nonstopmode; input ptmr8t
Please type another input file name
! Emergency stop.
<*> ...:=ljfour; mag:=1; nonstopmode; input ptmr8t
Transcript written on mfput.log.
grep: ptmr8t.log: No such file or directory
mktextfm: `mf-nowin -progname=mf \mode:=ljfour; mag:=1; nonstopmode; input ptmr8t' failed to make ptmr8t.tfm.
kpathsea: Appending font creation commands to missfont.log.
! Font T1/ptm/m/n/12=ptmr8t at 12.0pt not loadable: Metric (TFM) file not found
.
<to be read again>
What's the problem?